true or false
_____1. Tangent line is a line that intersects the circle in at least one point.
_____2.At a given point on a circle, at least one line can be drawn that is tangent to the circle.
_____3. The point of intersection of the tangent line and the circle is the point of tangency.
_____4. If a line is tangent to a circle, then it is perpendicular to the radius drawn to the point of tangency.
_____5. If two segments from the same exterior point are tangent to a circle, then the two segments are congruent.
_____6. A common tangent is a line that is tangent to two circles in the same plane.
_____7. A secant line is a line that intersects a circle at exactly one point.
_____8. A secant contains a chord of a circle.
_____9. If a tangent and a secant intersect in the exterior of a circle, then the measure of the angle formed is one-half the sum of the measures of the intercepted arcs.
_____10. If a secant and a tangent intersect at the point of tangency, then the measure of each angle formed is one- half the measure of its intercepted arc.
_____11. External secant segment is the part of a secant segment that is inside a circle.
_____12. If two chords of a circle intersect, then the product of the measures of the segments of one chord is equal to he product of the measures of the segments of the other chord.
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Answer:
1t
2f
3t
4t
5t
6f
7t
8f
9f
10t
11f
12t